SupaKeeper Plain comparisons of AI coding tools

AgentHydra vs Gemini CLI in 2026

AgentHydra and Gemini CLI compared on what each does, what each costs and what to check before choosing one for coding work.

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SupaKeeper is published by LunarWerx, which makes some of the tools compared here.

AgentHydra shows Claude Code, Codex and OpenCode sessions in one searchable list, updated live while they run [1]. Gemini CLI offers lightweight access to Gemini models, giving the most direct path from a prompt to the model [2].

OptionWhat its sources say it doesCostAccount or install
Gemini CLIAn open-source AI agent that brings Gemini directly into the terminal [2]; offers lightweight access to Gemini models, giving the most direct path from a prompt to the model [2]; can query and edit large codebases [2]; was replaced by Antigravity CLI on June 18th, 2026 for unpaid tier and Google One users [2]; has not been optimized for Gemini 4 Argon [2]; stable releases are published weekly on Tuesdays at 20:00 UTC [2]not publishedHomebrew on macOS and Linux [2]; MacPorts on macOS [2]; npm global install [2]; npx with no installation [2]
AgentHydraShows Claude Code sessions on your machine in one searchable list, updated live while they run [1]; lists each Claude account with its plan and 5-hour and weekly quota [1]Free, with no account or subscription [1]Tray app needs Windows [1]; install with a one-line PowerShell script, a build from GitHub Releases, or from source with Bun [1]

The short answer

AgentHydra shows Claude Code, Codex and OpenCode sessions on your machine in one searchable list, updated live while they run [1]. Gemini CLI offers lightweight access to Gemini models, giving the most direct path from a prompt to the model [2].

The needs each source says they meet are different. AgentHydra lists each Claude and Codex account with its plan and 5-hour and weekly quota, and can open, focus, quit, create and delete Claude Desktop instances [1]. Gemini CLI offers access to Gemini models [2]. Pick by the task the source says each tool handles: AgentHydra brings Claude Code, Codex and OpenCode sessions and account details together, while Gemini CLI provides access to Gemini from a prompt [1] [1] [2].

What Gemini CLI is built for

Gemini CLI offers lightweight access to Gemini models, giving the most direct path from a prompt to the model [2]. It can be installed globally on macOS and Linux using Homebrew [2]. On macOS, it can also be installed using MacPorts [2].

The facts supplied here describe Gemini CLI as a way to access Gemini models and give these installation routes [2] [2] [2]. They do not state a price or give further details about daily use, so check its own pages for those points.

What AgentHydra is built for

AgentHydra is made by the team that publishes this site. It shows Claude Code, Codex and OpenCode sessions on your machine in one searchable list, updated live while they run [1]. It lists each Claude and Codex account with its plan and 5-hour and weekly quota, and can open, focus, quit, create and delete Claude Desktop instances [1]. It lets you type a reply into a Claude session's own desktop chat, or send one message to several sessions [1]. It moves a Claude chat, history included, to another of your accounts [1].

It splits a task's pieces across Claude Code CLI sessions on your accounts, and moves a worker to another account when one nears its limit [1]. It shows cost at API list prices by day, model, project and account [1]. It pairs each failed shell command with the command that fixed it, and can copy those pairs out as a rules file for your agents [1].

Pricing and fees

AgentHydra is free, with no account or subscription [1], and it is open source under the MIT License [1]. The supplied Gemini CLI facts give no fee or plan price, so its cost is not published here [2]. The facts here do not describe a trial or discount for either tool, so none is stated here. Check each tool's own pages for the cost of the plan or service you would use.

Setting it up and daily use

AgentHydra's tray app needs Windows; macOS and Linux builds exist but have not been verified [1]. On Windows, install with a one-line PowerShell script, or download a build from GitHub Releases, or run from source with Bun [1]. There is no account or subscription to set up [1]. Day to day, the session list updates live while sessions run [1], and its features are exposed as tools an agent can call, including checks for which account it is on and how much quota is left [1]. It also prints the same cost numbers as JSON from the command line [1].

Gemini CLI can be installed globally with Homebrew on macOS and Linux [2], or with MacPorts on macOS [2]. The supplied facts say nothing more about setting it up or using it day to day, so check its own pages for that.

Things to check before you choose

Check the operating system first. AgentHydra's tray app needs Windows, and its macOS and Linux builds exist but have not been verified [1]. Gemini CLI's supplied facts give Homebrew for macOS and Linux and MacPorts for macOS, so check its own pages for any other route [2] [2].

Check what the tool reports about your work. AgentHydra shows cost at API list prices by day, model, project and account [1], so check what the API you use actually bills. Check where your work goes. AgentHydra can pack a task and its repository into a Markdown file, leaving out common secret files, then copy a prompt and open ChatGPT for you to send yourself [1], so check what you are willing to send and to which service.

How to choose

If you run several Claude and Codex accounts and want their sessions together, AgentHydra lists them in one searchable list [1] and lists each account with its plan and 5-hour and weekly quota [1]. If a task is too big for one account, AgentHydra splits its pieces across Claude Code CLI sessions on your accounts and moves a worker to another account when one nears its limit [1].

If you want the most direct path from a prompt to a Gemini model, Gemini CLI offers that [2]. If you install from a package manager, the Gemini CLI routes are Homebrew on macOS and Linux [2] and MacPorts on macOS [2].

Frequently asked questions

Is AgentHydra free to use?

AgentHydra is free, with no account or subscription [1]. It is open source under the MIT License [1]. The tray app needs Windows, while macOS and Linux builds exist but have not been verified [1]. The supplied facts do not state a separate paid plan, trial, or discount.

Does Gemini CLI cost anything?

The supplied Gemini CLI facts give no price or fee, so its cost is not published here [2]. They describe Gemini CLI as offering lightweight access to Gemini models and giving a direct path from a prompt to the model [2]. They also describe installation routes, but do not state a plan price [2] [2]. Check its own pages for the cost of the service or plan used.

How is Gemini CLI installed?

Gemini CLI can be installed globally on macOS and Linux using Homebrew [2]. On macOS, it can also be installed using MacPorts [2]. The supplied facts also list npm and npx routes in the comparison table [2] [2]. Check the current Gemini CLI pages before choosing an installation route.

What does AgentHydra show about Claude and Codex accounts?

AgentHydra lists each Claude and Codex account with its plan and 5-hour and weekly quota, and it can open, focus, quit, create and delete Claude Desktop instances [1]. It also shows Claude Code, Codex and OpenCode sessions on your machine in one searchable list, updated live while they run [1].

What does Gemini CLI offer developers?

Gemini CLI offers lightweight access to Gemini models, giving the most direct path from a prompt to the model [2]. The supplied facts also say it can query and edit large codebases [2]. Its installation facts cover Homebrew on macOS and Linux and MacPorts on macOS [2] [2].

Free, with no account or subscription. [1]

Try AgentHydra

Sources

  1. AgentHydra's own description of itself (the product of this site's publisher)
  2. Gemini CLI, github.com/google-gemini/gemini-cli, read 2026-10-18

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